用一条四次带参Bézier曲线统一描述了汽车前脸各造型设计元素的轮廓;提出首先由设计师在平面视图中绘制并编辑汽车前脸造型的二维四次带参Bézierr曲线轮廓图,然后将其投影到车身曲面上,最后通过对曲面的修剪获得汽车前脸造型的方法。该方法基于四次带参Bézier曲线生成与拼接原理,可迅速于全局或局部调整汽车前脸轮廓线条,获得光顺的曲线效果,从而快速获得多种汽车前脸设计的造型方案。 A four-band parametric Bézier curve is used to describe the contour of each styling element in the front of the car. The two-dimensional four-band parametric Bézier curve is first drawn and edited by the designer in plan view. Projection to the car body surface, and finally through the surface of the car trim to get the front face shape method. The method is based on the principle of four-band Bézier curve generation and splicing, which can quickly and globally adjust the contour line of the front of the car, and obtain the smooth curve effect so as to quickly obtain the styling schemes of various front designs.